}

        @ParameterizedTest
        @CsvSource({ "file.txt", "document.doc", "image.png", "folder/subfolder/file.txt", "C:\\Windows\\System32\\config.sys",
                "/usr/local/bin/app", "file with spaces.txt", "''" // empty string
        })
        @DisplayName("Test getFileName with various file names")
        void testGetFileNameWithVariousValues(String fileName) {